The "45" in Plascaflex V 45 indicates a taking lens with the maximum aperture of f/4.5. Similarly, the Plascaflex PS 35 has a f/3.5 lens. The Plascanar anastigmat 75/3.5 is set in a Prontor S or Compur shutter with speeds up to 1/200s. It takes 6×6 pictures on 120 film.